Lead (II) sulfide, PbS, reacts with oxygen gas to produce lead (II) oxide and sulfur dioxide. If 0.750 moles of O2 were used during this chemical reaction, how many grams of lead (II) oxide would be produced?

111.5 grams of lead (II) oxide would be produced.

Explanation:

Moles of oxygen = 0.750 mol

According to reaction, 3 moles of oxygen gas gives 2 moles of lead(II) oxide ,then 0.750 moles of oxygen gas will give:

of lead (II) oxide

Mass of 0.50 moles lead(II) oxide:

0.50 mol × 223 g/mol = 111.5 g

111.5 grams of lead (II) oxide would be produced.

it forms an anion that has a larger radius. anions have a negative charge and are larger than the original atom.

the answer is c.the valence of the atoms combine .